add test for HybridUSDCTokenPool bugfix and changeset

contracts/.changeset/chilly-news-wink.md

@@ -0,0 +1,5 @@
+---
+'@chainlink/contracts': minor
+---
+
+#feature Add two new pool types: Siloed-LockRelease and BurnToAddress and fix bug in HybridUSDCTokenPool for transferLiqudity #bugfix

contracts/gas-snapshots/ccip.gas-snapshot

@@ -133,6 +133,7 @@ FeeQuoter_updateTokenPriceFeeds:test_ZeroFeeds() (gas: 12471)
 FeeQuoter_validateDestFamilyAddress:test_ValidEVMAddress() (gas: 6789)
 FeeQuoter_validateDestFamilyAddress:test_ValidNonEVMAddress() (gas: 6514)
 HybridLockReleaseUSDCTokenPool_TransferLiquidity:test_transferLiquidity() (gas: 167715)
+HybridLockReleaseUSDCTokenPool_TransferLiquidity:test_transferLiquidity_MultipleChainsSequentially() (gas: 233095)
 HybridLockReleaseUSDCTokenPool_lockOrBurn:test_PrimaryMechanism() (gas: 130356)
 HybridLockReleaseUSDCTokenPool_lockOrBurn:test_onLockReleaseMechanism() (gas: 140104)
 HybridLockReleaseUSDCTokenPool_lockOrBurn:test_onLockReleaseMechanism_thenSwitchToPrimary() (gas: 202967)

contracts/src/v0.8/ccip/test/pools/USDC/HybridLockReleaseUSDCTokenPool/HybridLockReleaseUSDCTokenPool.transferLiquidity.t.sol

@@ -63,6 +63,34 @@ contract HybridLockReleaseUSDCTokenPool_TransferLiquidity is HybridLockReleaseUS
     );
   }
 
+  function test_transferLiquidity_MultipleChainsSequentially() public {
+    // Set as the OWNER so we can provide liquidity
+    vm.startPrank(OWNER);
+
+    uint64 RANDOM_CHAIN_SELECTOR = DEST_CHAIN_SELECTOR + 1;
+
+    s_usdcTokenPool.setLiquidityProvider(DEST_CHAIN_SELECTOR, OWNER);
+    s_usdcTokenPool.setLiquidityProvider(RANDOM_CHAIN_SELECTOR, OWNER);
+
+    s_token.approve(address(s_usdcTokenPool), type(uint256).max);
+
+    uint256 liquidityAmount = 1e9;
+
+    // Provide some liquidity to the pool
+    s_usdcTokenPool.provideLiquidity(DEST_CHAIN_SELECTOR, liquidityAmount);
+    s_usdcTokenPool.provideLiquidity(RANDOM_CHAIN_SELECTOR, liquidityAmount);
+
+    // Set the new token pool as the rebalancer
+    s_usdcTokenPool.transferOwnership(address(s_usdcTokenPoolTransferLiquidity));
+
+    // Test the ability to transfer liquidity from multiple chains in multiple sequential calls
+    s_usdcTokenPoolTransferLiquidity.transferLiquidity(address(s_usdcTokenPool), DEST_CHAIN_SELECTOR);
+    s_usdcTokenPoolTransferLiquidity.transferLiquidity(address(s_usdcTokenPool), RANDOM_CHAIN_SELECTOR);
+
+    assertEq(s_token.balanceOf(address(s_usdcTokenPoolTransferLiquidity)), liquidityAmount * 2);
+    assertEq(s_usdcTokenPoolTransferLiquidity.getLockedTokensForChain(RANDOM_CHAIN_SELECTOR), liquidityAmount);
+  }
+
   function test_RevertWhen_cannotTransferLiquidityDuringPendingMigration() public {
     // Set as the OWNER so we can provide liquidity
     vm.startPrank(OWNER);